Click on map to open large map in new window (Map updated: 11 August 2009)

Click here to view an interactive map of the Northern Ireland dataset as currently collated by CEDaR.The map is generated through the NBN Gateway using their Interactive Mapping Tool.

Rare in Ireland, this small epiphytic lichen of smooth-barked trees in old, oceanic woodlands, is usually noticed on account of its tiny frosted discs, so it is easily overlooked, especially if there appears to be little else but bare bark present. Holly is an especially favoured host. The creamy thallus, usually surrounded by a brown line, has discs irregularly branched or star-shaped (to 1.2mm diam.). Under a UV lamp the fruits glow a beautiful bright orange-yellow. Western Ireland.

Key characteristics

Thallus creamy, with a brown margin; on smooth bark in humid parts of old woodlands including near water, pits and slopes